Nut grading and shelling machine.



No. 853,066. v I PATENTE'D MAY 7,1907. 1. 0. ORBLLIN..

NUT GRADING AND SHELLING MACHINE APPLICATION FILED JULYQB, 1905.

2 SHEETS-SHEET 1.

310.853. 066. PATENTED MAY 7, 1907.

J. 0. ORELLIN. NUT GRADING AND SHELLING MACHINE.

APPLICATION FILED JULYZB, 1905.

2 SHEETSSHBET 2.

to pass uncracked.

. nuts, theiirst object to beattained is the proelongated nuts will begraded to their lesser ourrnn srarrns earner errors.

NUT enanme AND assume MACHINE-r Specification of Letters Patent.

7 Patented ma 7,1907.

Application filed July 28, 1966. Serial No. 271,646.

To a l] (uh-0m i1" Ill/(Ly cor/[carria- Be it known that .l, Jonx CanaanCRELLIN, a subject of theKing of Great Britain and Ireland, residing at40 Park Lane, Liverpool. England, have invented a certain new and Iuseful Improvement in Nut Grading. and Shelling Machines, of which thefollowing is a specilication.

This invention relates to machinery for shelling palm-oil nuts andother-hard nuts, so

to liberate their kernels.

The invention has also reference to the necessary means for grading orsorting such nuts before they are submitted to the cracking operation.

The shells of certain species of nuts vary considerably both in size andshape or con tour. For. examplewith reference more particularly topahn-oil nuts-there is nouniformity either in the size or shape oftheir, shells. Consequently in designing a machine for the purpose ofcracking the shells of such vision ot means whereby such nuts may begraded or sorted before they are dealt with i;

by the crackers. In. dealing with palm-oil nuts-for which this inventionis particularly"applicable-provision must be made for their greatvariance in size and contour. Hardly two nuts in a parcel are alikeincontour. They vary .from the approximately spherical and oval to theiilbert and other irregular, shapes. i'iccording to the presentinvention such nuts are graded accbrding to their lesser girth. Forexample, oval or girth and will thus besorted with apprcxiinatelyspherical nuts having that girth. The cracking devices according to thisinvei'ition will be similarly adapted to deal with nuts which have beengraded according to their lesser girth.

in carrying this invention into practical effect employment is made ofrevolving rollers for the primary purpose of grading the nuts'and alsofor the purpose of cracking their shells. The l'orinsof these rollersand their disposition relatively to one another, and their inclination,are such that the nuts pass between such rollers at theplace where thespace between the rollers wil accommodate the lesser girth of the shell.Such spaces, as regards the grading rollers, will permit a nut to pass,but as regards the cracking rollers will be insufficient to allow thenutof a nut grading and shelling machine constructed according to thisinvention, Fig. 2 being a side elevation thereof, and Fig. 3 is asectional plan on line 3-3 Fig. 2. Figs. 4 and 5 are front and rearviews of the machine, respectively. Fig. 6 is a cross section. on line65 Fig. 2.

The combined nut grading and cracking machine illustrated comprises apair of-grading rollers A, A, whose. axes: are inclined, and a-pair ofcracking rollers B, B, whose axes are horizontal. The rollers A aredisposed directly above the rollers B, their journals C, D, beingcarried in suitable-bearings in the frame E. Keyed on the journals L ofthe rollers A are the pinion Wheels F, and keyed on the journals D ofthe rollers B are the pin- -ion Wheels G, and keyed on the extendedjournal D of one of the rollers B is the spur wheel H, the latter beingin gear with one of the pinion Wheels F. Fixedly mounted on the saidextended journal D is the hand operated crank K. The directions in whichthe Wheel H and the rollers A and B are caused to rotate by theoperation of the said crank l1andle"are indicated by arrows in Fig. 6.The surface of the rollers B is grooved or serrated as shown-in Fig. 6,so that they will grip and crack the shells of the nuts Q pass ingbetween such rollers.

L are plates, formed to fit near to the circumference ofthe rollers '13,the function of these plates being to'insure that the nut enters betweenthe-rollers B at apoint corre sponding with the point at which itescaped from the grading rollers A.

N is the feeding chute hinged to the stand ards P and possessinganputlet aperture R, whiclrchute is constantly shaken by means of theforked piece N riding upon the squared part (l of the roller journal C,as shown in Fig. 4-.

It will be seen that the grading rollers A are disposed directly abovethe cracking rollers B, and that the tapering of the grading rollerscorresponds with that of the cracking rollers. The tapering spacebetween the grading rollers, through which the nuts fall, is thusdirectly above the tapering space be tween the cracking rollm's, in wh hthe nuts are cracked, and,corresponds then ith with the exception thatthe space between the cracking rollers is necessarily somewhat smaller.Consequently when-a nut escapes between the grading rollers it fallsdirectly in the amiexeddrawings Figure 1 is a plan I 2 I ssaoee tion.

vers A the tendency of the nuts is to gravitate into the space betweenthe cracking rollers at the oint where the latter are best adapted tocrac' the shell. It will also be seen. that the contiguous or opposingfaces of the grading rollers A A move upwardly and outwardly, that is,in the direction opposite to a feed 1110-- Fed on to the broader ends ofthe rollto the narrower ends. It is found in practice that the rotationof the rollers A has a tendency to so manipulate the nuts that they ascae as soon as the space between the rollers Wi l acconnnodate theirlesser girth. That is to say, the nuts naturally lie with their 20Patent is:

In a nut grading and shelling machine, a

pair of tapered grading rollers whose axes are parallel and inclined,arranged directly above a p air of correspondingly tapered and groovedcracking rollers, said rollers being so'gearecl with each other that thegrading rollers rotate in opposite directions and in directions oppositeto the directions of rotation of the cracking rollers, the directions ofrotation of the grading rollers tending to expel the nuts fed on tothem, while the direction of rotation of the cracking rollers operatesto draw such nuts between such cracking rollers,

1neans for'rotating such. rollers, and means for feeding nuts on to thegrading rollers and l or guiding them therefrom on to'the cracl ingrollers, as described.

JOHN C. CRE LLIN.

Wi tnesses:

JAMEs A. Cousnoueu, S. T. THOMSON, Junr.

